The BBC have confirmed that Sherlock season 4 will return on New Year’s Day. They have also released a brand new trailer which you can watch below.
Benedict Cumberbatch returns as Sherlock Holmes, with Martin Freeman as John Watson, Mark Gatiss as Mycroft, Rupert Graves as Inspector Lestrade, Una Stubbs as Mrs Hudson, Amanda Abbington as Mary Watson and Louise Brealey as Molly Hooper.
Episode one of the new series is written by Mark Gatiss and titled The Six Thatchers. In the episode Sherlock waits to see where Moriarty will make his posthumous move.
Watch the new Sherlock season 4 trailer below:
One mysterious case in particular baffles Scotland Yard – but Sherlock is more interested in a seemingly-trivial detail. Why is someone destroying images of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work? Something with its roots deep in Mary Watson’s past…
Sherlock season 4 begins January 1st 2017 at 8:30pm – 10:00pm on BBC One.
Preview season four with our gallery below: